San Francisco wasn't the center of the rock universe when Jim Marshall moved there in 1964, but the photographer must have sensed something amazing was about to happen. Within a year of his arrival, bands like the Grateful Dead, the Jefferson Airplane and Big Brother and the Holding Company began gigging around town — and Marshall was there to capture all of it on camera.

"He was a professional genius," Michelle Phillips told Rolling Stone when Marshall died in 2010. "But he was ever so discreet — I never remember him taking pictures."

But he did take pictures, thousands and thousands of them. Some of them, like Jimi Hendrix burning his guitar at the Monterey Pop Festival and Johnny Cash flipping the bird at San Quentin, are among the most iconic images in rock history. But in the past few years, archivists have combed through his archives and discovered an astonishing treasure trove of unseen photos from the Haight-Ashbury days. The best of them have been collected in the new book The Haight: Love, Rock and Revolution. Here are some stunning images from the book, which is in stores now.